Bifurcated Digital Circuit for High-Fidelity Wireless Audio
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current electronic technologies for amplifying and recording musical performances suffer from noise ingress, nonlinear amplitude response, limited dynamic range, frequency response issues, and audio latency, which compromise sound quality, especially for stringed instruments.
Innovation Solution
A bifurcated digital circuit system comprising an audio transducer, digital encoder, signal processor, field programmable gate array, wireless transmitter, receiver, and digital audio amplifier, with programmable settings for noise attenuation, latency optimization, and frequency response correction, enabling high-fidelity wireless audio processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless transmission is used to eliminate cables and improve mobility, then ease of operation is improved, but noise ingress from radiofrequency interference worsens
Solution Approach 1:
The patent introduces an audio transducer as an intermediary device that converts acoustic vibrations directly into digital audio signals, bypassing the need for traditional electromagnetic wireless transmission. This mediator eliminates radiofrequency interference while maintaining wireless mobility, as the transducer captures sound waves and converts them to digital form for direct processing.
2Power
If analog amplification elements are used to amplify sound, then power is improved, but nonlinear amplitude response and distortion worsen
Solution Approach 1:
The patent replaces analog amplification elements with digital signal processing components. The audio transducer converts acoustic signals directly into digital audio data, which is then processed by a digital signal processor. This substitution eliminates the nonlinear amplitude response and distortion inherent in analog amplification while maintaining powerful amplification capability through digital means.
3Manufacturing precision
If digital signal processing is added to reduce noise and correct frequency response, then sound quality is improved, but audio latency increases
Solution Approach 1:
The patent merges multiple functions into a single integrated digital signal processor unit. The device simultaneously performs noise reduction, frequency response correction, and amplitude linearization in one processing stage rather than through separate sequential stages. This consolidation minimizes processing delays while maintaining high sound quality, thereby reducing overall audio latency.
4Ease of manufacture
If traditional electronic pickup components are used to capture instrument sound, then ease of manufacture is improved, but noise ingress from electromagnetic fields worsens
Solution Approach 1:
The patent replaces traditional electronic pickup components that rely on electromagnetic induction with an audio transducer that uses acoustic vibration detection. The transducer mechanically captures sound waves from the instrument and converts them directly into digital signals, eliminating susceptibility to electromagnetic field interference while remaining manufacturable through standard digital device fabrication processes.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively reduces noise ingress, corrects nonlinear amplitude and frequency responses, and optimizes dynamic range and latency, resulting in improved sound quality and fidelity for musical performances.
Implementation Method 1
an audio transducer that is located in close proximity to a musical instrument
Implementation Method 2
a wireless transmitter that is in electronic communication with the field programmable gate array encoder; a remote circuit subset comprising: a wireless receiver that is in wireless communication with the proximate circuit subset's wireless transmitter along an over-the-air path
Data Source
AI summary
The present invention provides a complementary bifurcated circuit to process and optimize music digitally with high fidelity yet with wireless elements. In a particular embodiment, an audio transducer in close proximity to a musical instrument or vocalist's mouth transforms audible music to analog electrical signals, which are digitized and then filtered to remove external noise at the frequencies of alternating current as well as internally generated noise. A FPGA encoder optimizes the signal's latency and formats the signal for wireless transmission, which is then accomplished with a transmitter and receiver. A transmitter control interface programs one or more of the digital encoder, digital processor, FPGA encoder and wireless transmitter. The signal received wirelessly at a remote location is stripped of formatting by a FPGA decoder, corrected to remove nonlinearities in amplification, further optimized for sound latency, and amplified as needed to drive an external audio apparatus such as a loud speaker, mixing board, or professional recording device. A receiver control interface programs one or more of a receiver, FPGA decoder, digital audio CODEC, and digital audio amplifier. The invention is particularly well suited for stringed instruments but is not so limited.